• Coordinates GIS mapping and information exchange efforts for York County Government.
  • Assists staff in any department with GIS instruction, field data collection, and map making.
  • Acts as keepers of the County GIS data assets but not as data editors.
  • The GIS office adds value to data (facts about the world) by turning them into information.
  • Creates higher-level information products for decision making.

York County Geographic Information Services (GIS) is both a division of the Management Information Technology (MIS) Department and a countywide program of spatial data and application development. GIS division staff is responsible for overseeing the County’s baseline digital spatial databases and for providing state-of-the-art mapping and data services to County departments, citizens, local governments, and businesses. While GIS staff in other departments are responsible for day to day departmental data maintenance, the GIS division of MIS is only the caretaker or holder of the information.

This Office Does

  • Maintains the GIS Online website for use by staff and citizens which enables anyone to browse or obtain spatial information.
  • Facilitates cooperative data sharing and coordination efforts among County departments to establish more efficient government workflow processes through appropriate usage of technology.
  • Provides historic orthophotography for years 1970, 1980, and 1990 through a web portal.
  • Provides instruction to map makers, data editors, and GIS field data collection staff in various departments.
  • Distribute GIS data to citizens through a web portal (at no cost).

This Office Does Not:

  • Make printed hardcopy maps for public.
  • Make edits to data (property parcels) but instead routes the inquiry to the responsible department (Assessor)


How do I access historical aerial photography?
The Historical Imagery Viewer has aerial photography of York County from 1970, 1980, 1990, and 2000s. Please review the instructions on our blog to learn how to access 1970 and 1980 imagery through the index number for each image. Imagery for other years are not indexed (the images seamlessly cover the whole county) and do not require this extra step. Basic instructions as well as blog links are also provided on the opening page (left panel) of the Historical Imagery Viewer.
My property is not supposed to look like what is presented when I review it using the GIS Online website.
Always check the officially recorded document for the legal description of the property. The disclaimer on the GIS web pages describes how the digital drawing of the property boundaries is an approximation of the legal documents.
My property is not drawn correctly (e.g. the boundary is drawn on top of my house). What should I do?
There are many variations to this question. Use the submit problems website to let us know what the issue is. A representative from the County Tax Assessor's Office will review your inquiry and let you know what actions are taken.
How do I get a map made of …?
Using one of the dynamic map viewers (e.g. Parcel Viewer on the Online Mapping Applications page ) zoom to the area of interest, make the appropriate map layers visible (if not already), and then print the map (click the ‘I want to button’ in the upper left corner of the map then click the ‘Create a printable map’ option). Alternately the Easy Search application could be used to search for a known entity (e.g. address, street, owner, taxmapid) and on the resulting report click on a link to one of the dynamic viewers. For more detailed instructions on printing a map please review our blog on this topic.
How do I obtain digital files of GIS data layers?
Digital data of York County can be downloaded, for free, with either the Data Extraction application or the Data Download site. The Data Extraction application provides a map with a user interface to define of the geographic area to be extracted. A limited number of data layers are available and the output formats include shapefile and AutoCAD (dwg or dxf). The Data Download site provides access to most of the data layers available from York County and each layer covers the entire geographic extents of the county. The download files are shapefiles. For an explanation of data limitations and exceptions as well as instructions and other details concerning downloaded data please look at the GIS Data Download page.